diff options
Diffstat (limited to 'net/ipv4/ip_gre.c')
| -rw-r--r-- | net/ipv4/ip_gre.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index c0c5274d0271..32618e11076d 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -14,6 +14,7 @@ #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <linux/skbuff.h> #include <linux/netdevice.h> @@ -501,7 +502,6 @@ static void ipgre_err(struct sk_buff *skb, u32 info) t->err_time = jiffies; out: rcu_read_unlock(); - return; } static inline void ipgre_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb) @@ -537,7 +537,6 @@ static int ipgre_rcv(struct sk_buff *skb) struct ip_tunnel *tunnel; int offset = 4; __be16 gre_proto; - unsigned int len; if (!pskb_may_pull(skb, 16)) goto drop_nolock; @@ -628,8 +627,6 @@ static int ipgre_rcv(struct sk_buff *skb) tunnel->i_seqno = seqno + 1; } - len = skb->len; - /* Warning: All skb pointers will be invalidated! */ if (tunnel->dev->type == ARPHRD_ETHER) { if (!pskb_may_pull(skb, ETH_HLEN)) { @@ -643,11 +640,7 @@ static int ipgre_rcv(struct sk_buff *skb) skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN); } - stats->rx_packets++; - stats->rx_bytes += len; - skb->dev = tunnel->dev; - skb_dst_drop(skb); - nf_reset(skb); + skb_tunnel_rx(skb, tunnel->dev); skb_reset_network_header(skb); ipgre_ecn_decapsulate(iph, skb); @@ -810,11 +803,13 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev tunnel->err_count = 0; } - max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen; + max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen + rt->u.dst.header_len; if (skb_headroom(skb) < max_headroom || skb_shared(skb)|| (skb_cloned(skb) && !skb_clone_writable(skb, 0))) { struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom); + if (max_headroom > dev->needed_headroom) + dev->needed_headroom = max_headroom; if (!new_skb) { ip_rt_put(rt); txq->tx_dropped++; @@ -1144,12 +1139,9 @@ static int ipgre_header(struct sk_buff *skb, struct net_device *dev, if (saddr) memcpy(&iph->saddr, saddr, 4); - - if (daddr) { + if (daddr) memcpy(&iph->daddr, daddr, 4); - return t->hlen; - } - if (iph->daddr && !ipv4_is_multicast(iph->daddr)) + if (iph->daddr) return t->hlen; return -t->hlen; |